Add Import Files... command that supports many file types

Author: isc-bsaviano

package.json

@@ -271,10 +271,6 @@
           "command": "vscode-objectscript.newFile.message",
           "when": "false"
         },
-        {
-          "command": "vscode-objectscript.importLocalFilesServerSide",
-          "when": "false"
-        },
         {
           "command": "vscode-objectscript.showRESTDebugWebview",
           "when": "editorLangId =~ /^objectscript/ && vscode-objectscript.connectActive && activeCustomEditorId == ''"
@@ -573,11 +569,6 @@
           "when": "vscode-objectscript.connectActive && resourceScheme =~ /^isfs(-readonly)?$/ && resource =~ /project%3D/ && resourcePath =~ /^\\/?$/ && !listMultiSelection",
           "group": "objectscript_prj@3"
         },
-        {
-          "command": "vscode-objectscript.importLocalFilesServerSide",
-          "when": "vscode-objectscript.connectActive && resourceScheme == isfs && explorerResourceIsRoot && !listMultiSelection",
-          "group": "objectscript_modify@2"
-        },
         {
           "command": "vscode-objectscript.modifyWsFolder",
           "when": "(!resourceScheme || resourceScheme =~ /^isfs(-readonly)?$/) && explorerResourceIsRoot && !listMultiSelection",
@@ -1070,11 +1061,6 @@
         "command": "vscode-objectscript.newFile.message",
         "title": "Interoperability Message"
       },
-      {
-        "category": "ObjectScript",
-        "command": "vscode-objectscript.importLocalFilesServerSide",
-        "title": "Import Local Files..."
-      },
       {
         "category": "ObjectScript",
         "command": "vscode-objectscript.showRESTDebugWebview",
@@ -1108,7 +1094,7 @@
       {
         "category": "ObjectScript",
         "command": "vscode-objectscript.importXMLFiles",
-        "title": "Import XML Files..."
+        "title": "Import Files..."
       },
       {
         "category": "ObjectScript",